Improvement in slate-washers



Sv. S. NEWTON Slate-Washers.

No. 219,007. Patented Aug. 26,4879.

Mizemef:

NGTMDC.

UNITED l STATES PATENT OFFICE.

STEPHEN S. NEWTON, OF BINGHAMTON, NEW YORK.

IM PROVEM ENT IN SLATE-WASHERS.

Specification forming part of Letters Patent No. 219,007, dated August 26, 1879; application led April 23, 1879.

n To all whom it may concern:

Be it known that I, STEPHEN S. NEWTON, of Binghamton, in the county ofBroome and State of New York, have invented certain new and useful Improvements in Slate-Cleaners,

and I do'hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use Referring now to Figs. 1 and 2, A represents the body, made of wood, and cylindrical in form. The body is hollow, and is provided with a sheet-metal lining, c, tting closely,

and constructed at its upper end with an in-v ternal screw-thread. This lining a may be screwed within the vbody A by screw-threading the upper inner end of the body to corre- `spond with the thread of the lining, or by.

grooving the upper end of the body and spinning the lining into thegroove, or by' Asuch other method Vas may be found most convenient.

c is a bead or rib upon the outside of the body near the upper end. B is the spongesupport or discharging-tube, constructed with a rib or bead, b, near its lower end, and screwthreaded for a short distance upon each side of this rib, as indicated at b.

In practice I usually make the threads bl b1 of spun metal, in order that they may iitaccurately the thread in the upper end of the lining a, but shall not become so tight therein when wettedas to interfere with their removal, as will be explained.

The central opening through the spongesupport is of such diameter as to readily receive so much of the sponge as will hold it l (the said sponge) firmly in place, and, bypreference, I contract the upper end of this opening, as at b3, .li`igs'. 3 and 4, in order that the sponge shall be more firmly held in place.

In Fig. l I have represented the parts in proper working position.

` By making this opening circular or tubular in form and of substantially uniform diameter from the inner end to the iian ge or rib b3, I insure that the sponge shall be firmly held in place for use, while at the same time it can l be readily removed by pushing it through the support and out at the opposite end.

In Fig. 2 the position of the sponge-support is inverted, the sponge being thrust into the body A; and in this gure C represents a threaded cap, which is screwed upon the projecting end of the sponge-support, thus effectually preventing leakage of water from the body, so that the device may be carried in a persons pocket without danger of injuryto other articles.

It will be understood that by means of the combination of the metallic lining with a nonmetallic outer casing in a slate-washer I accomplish a result not produced by incasing a liquid-receptacle with a jacket or casing of another material, as such combination has hitherto been used, because in my device I securea tight joint where the sponge-'support is attached to the water-receptacle, and one in which contact with water will not cause the parts to swell so as to interfere with taking them apart or putting them together, while at the same time the non-metallic casing prevents the metal from scratching the slate.

In Figs. 3 and 4, the body A and spongesupport D are of substantially the same construction as the corresponding parts in Figs. l and 2, except that these parts are not screwed together, but are tapering in form where they are joined and are madeto iit each other water-tight.

The opening E through the sponge-support in Figs. 3 and 4 is substantially the same in shape as that in Figs. l and 2, except at its upper end.

In these Figs. 3 and 4 I employ a gate or valve to prevent the passage of Water through the sponge-support when desired, as follows: E is an internal screw-threaded tube, surrounded at one end by a cork, e, which ts closely the tube and the opening through the sponge-support. e1 is an external-threaded delivery-tube iittin g within the screw-threaded tube E', and provided at one end with. ports c2 and the flange or stop e3.

The operation of these last-named devices is substantially as follows: As shown in Fig. 3, when the device is ready for use, the ports e2 are opened-that is, they are projected beyond the end of the tube E', so that water can pass readily from the body A through the sponge-support to the sponge.

In Fig. 4 the ports e2 are retracted within the tube E', so that no water can pass through the discharging-tube.

From an examination of the drawings it will be seen that the beads which project from the body A, Figs. 1 and 2, will prevent the contact of the metal parts of the device with the slate.

It will, of course, be understood that a cap like that represented by C in Fig. 2 may be applied to the projecting end of the sponge and support shown in Fig. 4, and whenso applied will prevent injury to the projecting end of the valve, and will also prevent accidental opening of the valve.

It is evident that a cap like th at represented by C applied to the outer end of a non-reversible sponge-support would not serve the same purpose as it does when applied to the lower end of my reversible support, because, in my construction, it permits the length of the device to be materially shortened when being packed or carried in the pocket without danger of leakage or accidental injury, or displacement of the valve when said valve is used.

Fig. 5 represents a lining of metal or other suitable material for the sponge-support provided with inwardly-projecting barbs or spurs g, adapted to engage with the sponge and prevent its accidental displacement or withdrawal.

In this construction it will be found most convenient to remove the -sponge by thrusting it through the sponge-support and taking it out at the opposite end, which is ordinarily closed by means of a cork, a gate, or valve, substantially like that shown in Figs. Sand 4.

By combining the metallic lining, Fig. 5, with a wooden sponge-support,l I produce a very desirable construction, because the wood will ,not scratch a slate, while the metal spurs hold the sponge iirmly in place, the cylinder being held in place by either a rim or flange on the inside of the wooden part or on the outside of the cylinder.

I do not wish to be limited to the use of wood as the body of my slate-washer, it being evident that rubber, Celluloid, paper-pulp rendered Water-proof, or other material capable of being molded into the proper shape may be employed for that purpose; nor do I wish to be limited to any special form of valve for regulating theflow of Waterth rough the spongesupport.

In Fig. 7 I have shown a sponge-support made wholly of sheet metal spun into proper shape, with short threads above and below the rib F, and in order to prevent the metal from coming in contact with the slate and scratching it I affix the sponge upon the outside of the tip ofthe sponge-support, and I also apply the ring or bead F to the spongesupport substantially in the position indicated.

groove.

In order to properly retain said ring F in position, I form a groove, f, in the metal, which serves as a seat for the ring, and, by preference, l make the ring of rubber or other elastic material, which may beexpanded and will contract so as to remain rmly seated in the But I do not wish to be limited to the use of any particular material for this ring, or of making it in one piece, as it may be made in sections and united upon the sponge-support; or the support may be made of a cylinder and the ring placed thereon after one thread has been spun, and then secured in place by spin-V ning the other thread, for which reason I do Ilot wish to be limited to securing the ring in a groove formed specially for its reception.

In Fig. 6 I have shown another construction, in which the sponge-support G is constructed at its lower end to overlap the upper end of the water-receptacle, and I prefer to use with the sponge-support shown in this figure a metallic barbed lining, which may have its lower end turned outwardly, thus forming a lip, g', to hold it in place. l

What I elaimis-4 y 1. In a slate-washer, a sponge-support having an outer metallic surface, invcombination with a rib or bead, F, adapted to prevent the metal portion from comin g in contact with the slate, substantially as set forth.

2. The combination, in a slate-washer, of a wooden outer shell or casing, a sheetgmetal water-receptacle within the casingformed into a screw-thread at itsupper end, a wooden support adaptedtodcarry -sponge at one end and provided at its opposite end with a sheetmetal thread,whereby the outer shell is adapted to be used without scratching the slate, and the two members of the device are united by means of metallic connections, substantially as set forth.

3. In a slate-washer, a water-receptacle, in combination with a reversible sponge-support and a gate or valve which regulates the dis charge of water through the spongesupport, substantially as set forth. 'y

4. In a slate-washer, the combination, with a water-receptacle,.of the reversible spongesupport, constructed with a tubular internal opening of substantially uniform diameter throughout, and provided with a flange or rib, b3, to retain the sponge, substantially as set forth.

5. ln a slate-washer, a tubular sponge-snpf STEPHEN s. NEWTON.

Witnesses JOHN S. BARKER, H. H. DOUBLEDAY. 

